Abstract The purpose of this research is the study of relationshipamong personal characteristics with job burnout and deviantbehaviors of personnel’s of National Iranian Gas Company’s (NIGC)first region in which statistical populationincludes 100 personnel’s ofthis company that is done in the year 1392. 80 personnel are consideredas research sample according to Cochran Sampling Selection Table inorder to run questionnaire. Research instruments include job burnoutquestionnaire (Measles and Jackson, 1981), Neo personal characteristicsquestionnaire (McCrea and Costa, 1985), a 60-question form and an 8-question deviant behaviors questionnaire (Bent and Robinson, 2000)which has adequate validity and stability. Data gathered from questionnairesare studied through Prison’s Correlation Coefficient Test andregression analysis, simultaneously. Results show that there is a significantrelation among mental suffering with depersonalization, emotionalexhaustion, individual failure and deviant behaviors (P < 0.01). Inaddition, there exist another significant relation between emotional exhaustionand deviant behaviors (P < 0.01). In addition, the results ofregression analysis shows that mental suffering is the best factor forpredicting deviant behavior and job burnout (P < 0.01).